An example of initializing a custom game save system while setting up a Phaser game level.

Phaser-save-game-intialization.js

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//READ LOCAL STORAGE
//////////////////////
this.playerStats;
if (localStorage.getItem('Canyon_Runner_9282733_playerStats') != null) {
	this.playerStats = JSON.parse(localStorage.getItem('Canyon_Runner_9282733_playerStats'));
} else {
	this.playerStats = { topScore: 0, topTime: 0, returnPlayerToState: 'HowToPlay'};
}